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Single Family ResidenceResidential
$1,861,009$650 / ft²
TopHap EstimateOur estimate of what this home would sell for today, based on nearby sales, the home's size and features, and local price trends. It is a starting point, not an appraisal.· confidence 96How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Sep 24, 2026
Last sold for $1,835,000 on Aug 9, 2021

173 SONAS DR

HAYWARD, CA 94542
3
Beds
2.5
Baths
2,865 ft²
Living AreaTotal finished area of the structures, from county records. Some counties include shared space like hallways or a building gym, so it may not match a listing.
3,354 ft²
Lot SizeThe size of the land the home sits on, from county records.
2018
Year BuiltThe year the home was originally built, according to county records.
3
StoriesHow many floors the home has above ground.
6
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$1.9M
$1.8M low$1.9M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$1,835,000 · Aug 9, 2021

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$24,468 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$1,986,240 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$595,331
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$1,390,909
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$1,947,302
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$1,854,450

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Custom Design
CountyALAMEDA
Lot (acres)The size of the land the home sits on, from county records.0.08
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(1)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Stonebrae Elementary SchoolB
Elementary · Grades KG–6 · 0.8 mi
H
Hayward High SchoolC+
High · Grades 9–12 · 3.8 mi
M
Bret Harte Middle SchoolC-
Middle · Grades 7–8 · 4.2 mi

District: Hayward Unified School District

Neighborhood · ZIP 94542These are comparison scores, not percentages. 100 equals the national average, so 150 means about 50% above average.

CrimeLocal crime compared with the rest of the country, where 100 is average. It reflects things like population density, income, and how crime gets reported.63
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.91
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.725

Index scale: 100 = US average (tick). Lower is better.

Homes occupiedThe share of homes here that someone lives in. The rest sit empty, including vacation and for-sale homes.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.30%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.9%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.13,844
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,518 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$126,651
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$163,268
Average tempThe average temperature here across a full year.57°F
Annual precipHow much rain and melted snow falls here in a typical year.25 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.78%

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Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.

How this home compares

173 Sonas Dr measured against every home in its neighborhood, its ZIP code and its county, using county assessor records refreshed nightly. A home can stand out in one of those areas and look ordinary in another, because each one holds a different mix of homes.

  • Worth more than 89% of homes in Alameda County
  • Costs more per square foot than 81% of homes in Hayward 94542
  • Bigger than 90% of homes in Alameda County
  • Has a smaller lot than 96% of homes in Hayward 94542
  • Newer than 97% of homes in Alameda County

What homes are worth in Hayward 94542

Each bar is how many homes fall in that price range. The marker is this home.

This home
$501K$2.7M

This home is worth more than 81% of homes in Hayward 94542.

How it measures up in Hayward 94542

The dot is this home. The mark in the middle is the typical home in Hayward 94542.

Estimated value$1,861,009
CheaperTypical $1,246,388Pricier

Pricier than 81% of homes nearby

Price per ft²$650
CheaperTypical $571Pricier

Pricier than 81% of homes nearby

Living area2,865 ft²
SmallerTypical 2,197 ft²Bigger

Bigger than 71% of homes nearby

Lot size3,354 ft²
SmallerTypical 0.21 acBigger

Bigger than 4% of homes nearby

Year built2018
OlderTypical 1979Newer

Newer than 96% of homes nearby

How 173 Sonas Dr ranks against every home in each area.
MeasureThis homeHayward 94542Alameda County
Estimated valuepricier than$1,861,00981% of homes89% of homes
Price per ft²pricier than$65081% of homes48% of homes
Living areabigger than2,865 ft²71% of homes90% of homes
Lot sizebigger than3,354 ft²4% of homes12% of homes
Year builtnewer than201896% of homes97% of homes

About 173 Sonas Dr

How much is 173 Sonas Dr, Hayward, CA worth?

The TopHap Estimate for 173 Sonas Dr, Hayward, CA is $1,861,009 as of Sep 24, 2026. The likely range is $1,779,201 to $1,942,818. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 173 Sonas Dr, Hayward, CA last sell?

173 Sonas Dr, Hayward, CA last sold on Aug 9, 2021 for $1,835,000, according to the county's recorded deed.

How big is 173 Sonas Dr, Hayward, CA?

173 Sonas Dr, Hayward, CA has 3 bedrooms, 2.5 bathrooms, 2,865 square feet of living space and a 0.08-acre lot.

When was 173 Sonas Dr, Hayward, CA built?

173 Sonas Dr, Hayward, CA was built in 2018, making it 8 years old. It is a custom design home. The building has 3 stories.

What schools serve 173 Sonas Dr, Hayward, CA?

173 Sonas Dr, Hayward, CA is assigned to Stonebrae Elementary School (elementary), rated B; Hayward High School (high), rated C+; Bret Harte Middle School (middle), rated C-. All sit in Hayward Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 173 Sonas Dr, Hayward, CA compare to other homes in Hayward 94542?

Among the 4,392 homes in Hayward 94542, it is worth more than 81% of them ($1,861,009 against a typical $1,246,388), its price per square foot is higher than 81% of them ($650 against a typical $571), it is bigger than 71% of them (2,865 ft² against a typical 2,197 ft²), its lot is bigger than 4% of them (3,354 ft² against a typical 0.21 ac) and it is newer than 96% of them (2018 against a typical 1979). Measured against all of Alameda County, it is worth more than 89% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 173 Sonas Dr, Hayward, CA?

The 2025 property tax bill for 173 Sonas Dr, Hayward, CA was $24,468. The county assessed it at $1,986,240.

More homes on Sonas Dr

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